Podcast
Questions and Answers
During cytokinesis, the cell divides into two by the process of
During cytokinesis, the cell divides into two by the process of
Which of the following structures is responsible for cytokinesis in animal cells?
Which of the following structures is responsible for cytokinesis in animal cells?
When does cytokinesis begin and end in the cell cycle?
When does cytokinesis begin and end in the cell cycle?
Which part of the mitotic spindle in animal cells determines the plane of cell division?
Which part of the mitotic spindle in animal cells determines the plane of cell division?
Signup and view all the answers
What happens if the mitotic spindle is tugged into a new position in early anaphase?
What happens if the mitotic spindle is tugged into a new position in early anaphase?
Signup and view all the answers
In some cells, where is the site of contractile ring assembly chosen before mitosis?
In some cells, where is the site of contractile ring assembly chosen before mitosis?
Signup and view all the answers
What determines the symmetry of cell division in most animal cells?
What determines the symmetry of cell division in most animal cells?
Signup and view all the answers
Which of the following is true about asymmetric cell division?
Which of the following is true about asymmetric cell division?
Signup and view all the answers
What is the role of motor proteins in asymmetric cell division?
What is the role of motor proteins in asymmetric cell division?
Signup and view all the answers
What is the function of the contractile ring in cytokinesis?
What is the function of the contractile ring in cytokinesis?
Signup and view all the answers
How does the contractile ring constrict during cytokinesis?
How does the contractile ring constrict during cytokinesis?
Signup and view all the answers
Which type of mitosis is thought to have evolved separately from a common ancestor resembling the modern hypermastigote spindle?
Which type of mitosis is thought to have evolved separately from a common ancestor resembling the modern hypermastigote spindle?
Signup and view all the answers
What is the purpose of cytokinesis in the cell division process?
What is the purpose of cytokinesis in the cell division process?
Signup and view all the answers
What happens to each daughter cell after the completion of telophase and cytokinesis?
What happens to each daughter cell after the completion of telophase and cytokinesis?
Signup and view all the answers
Which structure guides the assembly of the cell plate during cytokinesis in higher plant cells?
Which structure guides the assembly of the cell plate during cytokinesis in higher plant cells?
Signup and view all the answers
Which protein is responsible for the recruitment of all other cell division proteins to the division site in bacteria?
Which protein is responsible for the recruitment of all other cell division proteins to the division site in bacteria?
Signup and view all the answers
Which protein has apparently taken over the function of FtsZ in mitochondrial division in fungi and animal cells?
Which protein has apparently taken over the function of FtsZ in mitochondrial division in fungi and animal cells?
Signup and view all the answers
What is the purpose of the preprophase band in higher-plant cells?
What is the purpose of the preprophase band in higher-plant cells?
Signup and view all the answers
What is the first visible sign that a higher-plant cell has become committed to divide in a particular plane?
What is the first visible sign that a higher-plant cell has become committed to divide in a particular plane?
Signup and view all the answers
How does binary fission in procaryotes differ from cytokinesis in higher plant cells?
How does binary fission in procaryotes differ from cytokinesis in higher plant cells?
Signup and view all the answers
In which organisms does mitosis depend on a membrane-attachment mechanism, where the chromosomes have to bind to the inner nuclear membrane for segregation?
In which organisms does mitosis depend on a membrane-attachment mechanism, where the chromosomes have to bind to the inner nuclear membrane for segregation?
Signup and view all the answers
In which organisms does the spindle remain outside the nucleus and press on the outside of the nuclear envelope during mitosis?
In which organisms does the spindle remain outside the nucleus and press on the outside of the nuclear envelope during mitosis?
Signup and view all the answers
Which organelles cannot assemble spontaneously from their individual components?
Which organelles cannot assemble spontaneously from their individual components?
Signup and view all the answers
What happens to the actin filaments in the contractile ring when microtubules are depolymerized?
What happens to the actin filaments in the contractile ring when microtubules are depolymerized?
Signup and view all the answers
What is the role of Rho A in cytokinesis?
What is the role of Rho A in cytokinesis?
Signup and view all the answers
How are membrane-enclosed organelles segregated when a cell divides?
How are membrane-enclosed organelles segregated when a cell divides?
Signup and view all the answers
Which phase of the cell cycle is characterized by DNA replication?
Which phase of the cell cycle is characterized by DNA replication?
Signup and view all the answers
What is the main function of the G2 phase of the cell cycle?
What is the main function of the G2 phase of the cell cycle?
Signup and view all the answers
Which phase of the cell cycle is responsible for nuclear division?
Which phase of the cell cycle is responsible for nuclear division?
Signup and view all the answers
What is the purpose of cytokinesis in the cell cycle?
What is the purpose of cytokinesis in the cell cycle?
Signup and view all the answers
During which phase of the cell cycle does DNA synthesis occur?
During which phase of the cell cycle does DNA synthesis occur?
Signup and view all the answers
What happens during the G1 phase of interphase?
What happens during the G1 phase of interphase?
Signup and view all the answers
What is the purpose of the G0 phase in the cell cycle?
What is the purpose of the G0 phase in the cell cycle?
Signup and view all the answers
What are the four phases of the eukaryotic cell cycle?
What are the four phases of the eukaryotic cell cycle?
Signup and view all the answers
Which of the following best describes the cell cycle in eukaryotic cells?
Which of the following best describes the cell cycle in eukaryotic cells?
Signup and view all the answers
What are the main stages of the cell cycle in eukaryotic cells?
What are the main stages of the cell cycle in eukaryotic cells?
Signup and view all the answers
How is the cell cycle in prokaryotic cells different from that in eukaryotic cells?
How is the cell cycle in prokaryotic cells different from that in eukaryotic cells?
Signup and view all the answers
